Update app.py

Imported 'load_dotenv' module.

app.py

@@ -6,6 +6,7 @@ from surya.model.detection.segformer import load_model as load_det_model, load_p
 from surya.model.recognition.model import load_model as load_rec_model
 from surya.model.recognition.processor import load_processor as load_rec_processor
 from gradio_client import Client
+from dotenv import load_dotenv
 import requests
 from io import BytesIO
 import cohere